The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Mar. 16, 2023
Applicant:
Skyworks Solutions, Inc., Irvine, CA (US);
Inventor:
Koichi Hatano, Yokohama, JP;
Assignee:
SKYWORKS SOLUTIONS, INC., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/60 (2006.01);
U.S. Cl.
CPC ...
H03H 9/605 (2013.01);
Abstract
A radio frequency ladder filter comprises a plurality of series bulk acoustic wave (BAW) resonators electrically connected in series between an input and an output, a plurality of shunt BAW resonators electrically connected between nodes between adjacent ones of the plurality of series BAW resonators and ground, and at least one parallel BAW resonator electrically connected in parallel with one of the plurality of series BAW resonators to increase attenuation in a lower side of a stop band of the radio frequency ladder filter.